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POHow to use pushViewController and popViewController
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  1. POHow to use pushViewController and popViewController
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    copied!<p>I want to A viewcontroller switch another B viewcontroller,First time,I push(press GuestBook Button)and TableView get information ok,and press back Button ok, push(press GuestBook Button) again,JSON data <code>NSLog</code> have message,but tableview data not appear! what's happen?</p> <p>PS:i use storyboard!Have a custom cell xib!</p> <p>A.m</p> <pre><code>- (IBAction)toHostGuestBook:(id)sender { hgbvc = [self.storyboard instantiateViewControllerWithIdentifier:@"ToHostGuestBookSegue"]; hgbvc.eventidStr = eventidStr; NSLog(@"hgbvc.eventidStr:%@",hgbvc.eventidStr); [self.navigationController pushViewController:hgbvc animated:YES]; } </code></pre> <p>B.m</p> <pre><code>- (IBAction)backToHostMainEventDetail:(id)sender { [self.navigationController popViewControllerAnimated:YES]; } </code></pre> <p>B.m</p> <pre><code>// Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *GuestBookCellIdentifier = @"GuestBookCellIdentifier"; static BOOL nibsRegistered = NO; if (!nibsRegistered) { UINib *nib = [UINib nibWithNibName:@"GuestBookCell" bundle:nil]; [tableView registerNib:nib forCellReuseIdentifier:GuestBookCellIdentifier]; nibsRegistered = YES; } gbcell = [tableView dequeueReusableCellWithIdentifier:GuestBookCellIdentifier]; if (gbcell == nil) { gbcell = [[GuestBookCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:GuestBookCellIdentifier]; } NSDictionary *dict = [messageRows objectAtIndex: indexPath.row]; gbcell.nicknameStr = [dict objectForKey:@"vusr"]; gbcell.dateStr = [dict objectForKey:@"date"]; gbcell.messageStr = [dict objectForKey:@"message"]; return gbcell; } </code></pre>
 

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